From: Johnny Dedon (johnny.dedon@xxxxxxxxxx)
Date: Mon Apr 02 2001 - 13:06:42 GMT-3
I haven't tried a scenario such as this but on the redistribution statement
under OSPF process, you still must include the subnets parameter for the
redistribution to work.
Johnny Dedon
Senior Staff Consultant
Exodus Professional Services
johnny.dedon@exodus.net
www.exodus.net
----- Original Message -----
From: "Nigel Taylor" <nigel_taylor@hotmail.com>
To: "Markus Haas" <mh@nmc-m.dtag.de>
Cc: "CCIELAB" <ccielab@groupstudy.com>
Sent: Monday, April 02, 2001 5:38 AM
Subject: Re: Redistributing variably subnetted routes from OSPF into RIP
(+default-route)
> Marcus,
> This is a very vanilla NSSA setup so in trying to isolate
> where the problem is I'd say drop the route-maps and see what happens.. If
> you still don't see the default route then quite possibly this could be
IOS
> related.. I'll check CCO.
>
> Nigel.
>
> ----- Original Message -----
> From: Markus Haas <mh@nmc-m.dtag.de>
> To: Nigel Taylor <nigel_taylor@hotmail.com>
> Cc: CCIELAB <ccielab@groupstudy.com>
> Sent: Monday, April 02, 2001 4:08 AM
> Subject: AW: Redistributing variably subnetted routes from OSPF into RIP
> (+default-route)
>
>
> Hi Nigel,
>
> here are the configs of the router:
>
> R1 (NSSA ABR):
>
> router ospf 1
> router-id 100.100.100.100
> area 1 nssa default-information-originate
> network 11.11.11.11 0.0.0.0 area 0
> network 192.168.0.1 0.0.0.0 area 1
>
> R2 (NSSA ASBR):
>
> router ospf 1
> router-id 1.1.1.1
> area 1 nssa
> redistribute rip subnets route-map RIP-TO-OSPF
> network 192.168.0.2 0.0.0.0 area 1
> !
> router rip
> redistribute ospf 1 route-map OSPF-TO-RIP
> network 10.0.0.0
>
> ip prefix-list OSPF-TO-RIP seq 10 permit 11.11.11.0/24 le 32
> ip prefix-list OSPF-TO-RIP seq 20 permit 192.168.0.0/24 le 32
> !
> ip prefix-list RIP-TO-OSPF seq 10 permit 10.1.0.0/16 le 32
> ip prefix-list RIP-TO-OSPF seq 20 permit 200.200.200.0/24 le 32
> !
> route-map OSPF-TO-RIP permit 10
> match ip address prefix-list OSPF-TO-RIP
> set metric 10
> !
> route-map RIP-TO-OSPF permit 10
> match ip address prefix-list RIP-TO-OSPF
> set metric 100
> set metric-type type-2
>
> R3 (RIP only):
>
> router rip
> network 10.0.0.0
>
>
> I also tried the command you told me, but it doesn't also work.
> The IOS version which I use on the boxes is 12.0-7T. Maybe a bug ?
> What di you think ?
>
> > -----Urspr|ngliche Nachricht-----
> > Von: Nigel Taylor [mailto:nigel_taylor@hotmail.com]
> > Gesendet: Sonntag, 1. April 2001 18:42
> > An: Markus Haas
> > Cc: CCIELAB
> > Betreff: Re: Redistributing variably subnetted routes from OSPF into RIP
> > (+default-route)
> >
> >
> > Marcus,
> > Post the configs... for R1 and R2... I must be missing
> > something... at the same time try the
> > "area 1 nssa nosummary" command and see if anything changes. The other
> > command should work as well.
> >
> > Nigel..
> >
> > ----- Original Message -----
> > From: Markus Haas <mh@nmc-m.dtag.de>
> > To: Nigel Taylor <nigel_taylor@hotmail.com>
> > Cc: CCIELAB <ccielab@groupstudy.com>
> > Sent: Sunday, April 01, 2001 11:39 AM
> > Subject: AW: Redistributing variably subnetted routes from OSPF into RIP
> > (+default-route)
> >
> >
> > > Hi Nigel,
> > >
> > > R2 is getting the default-route from R1. I configured on R1
> > > "area 1 nssa default-information-originate" on R1.
> > > R2 see the default-route from R1 and the "Gateway of
> > > last resort will set proper. Look:
> > >
> > > R2#sh ip route
> > > .
> > > .
> > > Gateway of last resort is 192.168.0.1 to network 0.0.0.0
> > > .
> > > .
> > > 11.0.0.0/32 is subnetted, 1 subnets
> > > O IA 11.11.11.11 [110/65] via 192.168.0.1, 00:19:10, Serial1
> > > C 192.168.0.0/24 is directly connected, Serial1
> > > O*N2 0.0.0.0/0 [110/1] via 192.168.0.1, 00:14:28, Serial1
> > >
> > >
> > > On R2 I redistribute the Network 192.168.0.0/24 and 11.11.11.0/24
> > > into the RIP domain. That's working fine and I see the OSPF routes
> > > inside the RIP domain. Look:
> > >
> > >
> > > R3#sh ip route
> > > .
> > > .
> > > Gateway of last resort is not set
> > > .
> > > .
> > > R 11.0.0.0/8 [120/10] via 10.1.3.1, 00:00:18, Ethernet0
> > > R 192.168.0.0/24 [120/1] via 10.1.3.1, 00:00:18, Ethernet0
> > >
> > > The problem is that the RIP don't pick the default-route and propagate
> > > it within RIP. I tried the command "default-information originate" on
R2
> > > under the rip process. But it doen't work.
> > > Any other idea's ? I will also read Doyle. Maybe he has an
> > answer for me.
> > >
> > > Markus
> > >
> > > > -----Urspr|ngliche Nachricht-----
> > > > Von: Nigel Taylor [mailto:nigel_taylor@hotmail.com]
> > > > Gesendet: Sonntag, 1. April 2001 16:37
> > > > An: Markus Haas; A.Strobel
> > > > Cc: CCIELAB
> > > > Betreff: Re: Redistributing variably subnetted routes from
> > OSPF into RIP
> > > > (+default-route)
> > > >
> > > >
> > > > Marcus,
> > > > My first question is "how is r2 getting the
> > default-route
> > > > from r1 now...? There's actually a couple of ways to get
> > your desired
> > > > results in this scenario.
> > > >
> > > > 1. If all you need is a default-route to propagate into your
> > rip domain
> > > > then the "area X nssa default-information originate on the NSSA ABR
> > should
> > > > get this done.
> > > > 2. If you have specific requirements to filter IA(type 3&4 LSAs)
then
> > the
> > > > "area X nssa no-summary" will fulfill this requirement.
> > > >
> > > > Check out Doyle's book on page 537-544, there are some great
examples
> > > > there..
> > > >
> > > > HTH
> > > >
> > > > Nigel..
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: Markus Haas <mh@nmc-m.dtag.de>
> > > > To: A.Strobel <anja10@usa.net>
> > > > Cc: CCIELAB <ccielab@groupstudy.com>
> > > > Sent: Sunday, April 01, 2001 5:49 AM
> > > > Subject: AW: Redistributing variably subnetted routes from
> > OSPF into RIP
> > > > (+default-route)
> > > >
> > > >
> > > > > Hi,
> > > > >
> > > > > I have a similar problem too. I'am dealing with
> > > > > default-routes between OSPP and RIPv1.
> > > > >
> > > > > R1--<OSPF>--R2--<RIP>--R3
> > > > >
> > > > > R1= NSSA ABR
> > > > > R2= NSSA ASBR
> > > > > R3= RIPv1 only
> > > > >
> > > > >
> > > > > My problem is that I want to use the default-route
> > > > > who's R2 is receiving from R1 inside my RIP domain.
> > > > > I tried several thing's, but I cant get it running.
> > > > > Have you an idea how it would work
> > > > >
> > > > > Markus
> > > > >
> > > > > > -----Urspr|ngliche Nachricht-----
> > > > > > Von: nobody@groupstudy.com [mailto:nobody@groupstudy.com]Im
> > > > Auftrag von
> > > > > > A.Strobel
> > > > > > Gesendet: Samstag, 31. Mdrz 2001 13:10
> > > > > > An: ccielab@groupstudy.com
> > > > > > Betreff: Redistributing variably subnetted routes from
> > OSPF into RIP
> > > > > >
> > > > > >
> > > > > > Redistributing variably subnetted routes from OSPF into RIP
> > > > > >
> > > > > > R3---<OSPF--<<-R2--->>>RIP-->>R1
> > > > > >
> > > > > > R2 is the ASBR
> > > > > >
> > > > > > I know one way to accomplish this is to summarize the routes and
> > > > > > use of "IP
> > > > > > route xxxx null0" on R2.
> > > > > >
> > > > > > Correct me if I am wrong, but the other solution is the
> > use of " ip
> > > > > > default-network xxx " on R1.
> > > > > > This works and I can reach the VLSM routes of R3 from R1, but
> > > > something
> > > > > > strange happens:
> > > > > > After I enter the command
> > > > > >
> > > > > > config t
> > > > > > ip default-network 10.1.3.0 (10.1.3.0 is on R3, with
> > > > RIP-compatible
> > > > > > mask)
> > > > > > end
> > > > > > show run
> > > > > > .
> > > > > > .
> > > > > > .
> > > > > > ip route 10.0.0.0 255.0.0.0 10.1.3.0
> > > > > >
> > > > > > As you see, my "ip default-network" command changes into "ip
> > > > > > route" command!
> > > > > >
> > > > > > Is this behavior normal?
> > > > > >
> > > > > >
> > > > > > I am puzzled. Any light would be appreciated
> > > > > >
> > > > > > A. Strobel
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
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